Where do you listen to music online? Chances are good it’s at iHeartRadio, which announced on Tuesday that it passed the 50 million registered user milestone, and did so faster than any other streaming music service — and even faster than Facebook or Twitter. Second only to Pandora in terms of overall adoption, iHeartRadio’s 50 million users continue to grow every day. And, there are even more users out there; this figure does not account for the millions who listen to iHeartRadio’os live radio functionality without registering.

iHeartRadio has seen exceptional growth in the past year, having launched a user-generated audiosode feature and picking up many partnership integrations including Apple, Amazon and Samsung. The iHeartRadio Network service hit a record number of visitors this May, with more than 97 million monthly unique listeners

iHeartRadio is available on more than 35 devices across web, mobile phones and more, and is always free for listeners to use — with no hourly cap or monthly subscription fees. To see all available platforms and to download the app, visit iHeartRadio.com/apps.

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